Qt Quick Virtual Keyboard - Basic Example | Qt Virtual Keyboard 5.15.19

- Qt 5.15
- Qt Virtual Keyboard
- Qt Virtual Keyboard Examples
- Qt Quick Virtual Keyboard - Basic Example
- Qt Virtual Keyboard | Commercial or GPLv3

# Qt Quick Virtual Keyboard - Basic Example

This is a basic QML example that uses the virtual keyboard.

The example has two implementations: one for desktop platforms and another for embedded platforms. The former version enables text input into several text fields using the virtual keyboard, whereas the latter version uses the same UI but with a custom virtual keyboard InputPanel. The following snippet from `basic.pro` shows how the qmake project is set up to choose the appropriate implementation based on the CONFIG options:

     disable-desktop|android-embedded|!isEmpty(CROSS_COMPILE)|qnx {
         DEFINES += MAIN_QML=\\\"basic-b2qt.qml\\\"
     } else {
         DEFINES += MAIN_QML=\\\"Basic.qml\\\"
     }

The example enables the virtual keyboard by setting the `QT_IM_MODULE` environment variable before loading the `.qml` file:

     #include <QQuickView>
     #include <QGuiApplication>
     #include <QQmlEngine>

     int main(int argc, char *argv[])
     {
         qputenv("QT_IM_MODULE", QByteArray("qtvirtualkeyboard"));

         QGuiApplication app(argc, argv);
         QQuickView view(QString("qrc:/%2").arg(MAIN_QML));
         if (view.status() == QQuickView::Error)
             return -1;
         view.setResizeMode(QQuickView::SizeRootObjectToView);

         view.show();

         return app.exec();
     }

Besides this, it uses custom TextField and TextArea items to configure the [ENTER] key behavior using the EnterKeyAction attached property.

     import QtQuick 2.10
     import QtQuick.Controls 2.3
     import QtQuick.VirtualKeyboard 2.1
     import "content"

     Rectangle {
         ...
                     TextField {
                         width: parent.width
                         placeholderText: "One line field"
                         enterKeyAction: EnterKeyAction.Next
                         onAccepted: passwordField.focus = true
                     }
         ...
                     TextArea {
                         id: textArea
                         width: parent.width
                         placeholderText: "Multiple line field"
                         height: Math.max(206, implicitHeight)
                     }
     }

The TextField and TextArea controls extend the respective Qt Quick Controls 2 types with `enterKeyEnabled` and `enterKeyAction` properties. The TextField and TextArea instances in the snippet can set these properties to change the default behavior.

#### Running the Example

To run the example from Qt Creator, open the Welcome mode and select the example from Examples. For more information, visit Building and Running an Example.

Example project @ code.qt.io